Tony Dinh — Developer Tools Solopreneur ($30K+/month)

Tony Dinh is the creator and founder of TypingMind, one of the most popular ChatGPT UI clients used by thousands of users worldwide. A former Big Tech software engineer, Tony quit his job to become a solo indie developer. He also built BlackMagic.so, a Twitter/X analytics and CRM tool. Tony is known for building in public and sharing his revenue milestones transparently on Twitter/X.

Tony Dinh's flagship product is TypingMind — a premium ChatGPT interface that lets users use their own API key with a better UI, prompt library, and plugin system. TypingMind generates the majority of his revenue. He also runs BlackMagic.so, a Twitter analytics and engagement tool, and DevUtils, a developer utilities app for macOS.

Tony's products collectively generate $30K+/month in monthly revenue, making Tony one of the standout solo founders in the developer tools space. What sets Tony apart is the ability to identify market gaps, build products quickly, and scale them without relying on a large team or outside funding.

Among Tony's most notable accomplishments: Created TypingMind, a top ChatGPT UI client used by thousands. Reached $30K+/month in revenue as a solo founder. Left a high-paying Big Tech engineering job to go indie. Built BlackMagic.so and DevUtils as profitable side products. One of the most transparent indie hackers — shares exact revenue publicly. Grew a large Twitter/X following by building in public. These milestones reflect both the depth of expertise and the consistency required to thrive as a one-person business.